1947-1955 (1st Series) GMC & Chevy Truck
Due to limited access space in the 47-55 (1st Series) Chevy truck, remove the motor from the regulator before installing:
- Remove the motor from the regulator — it’s held on with three button-head screws.
- Insert the regulator into the door.
- Reattach the motor to the regulator through the access hole.
Mounting Instructions
1947-1950 Chevy Truck — Right Side

1951-1955 (1st Series) Chevy Truck — Right Side

Running the Wire Harness Through the Door
- Locate the mounting point. Find the face side of the lower door hinge.
- Drill and tap. Drill and tap a hole for a #10 screw (use a 5/32″ drill bit and 10-32 tap).
- Secure the wire. Hold the wire in place with a nylon Adel clip using the #10 screw.
- Route into the cab. Drill a 7/8″ hole at the top of the kick panel under the dash and install a rubber grommet for wire travel.

Access is tight in the Advance Design door, which is worth knowing before you start. Aluminum door panels, bead rolled firewalls and billet door handles cut for the same cab are in our 47-54 truck parts collection.
For any questions or concerns with your install, don’t hesitate to email us at info@lsfab.com






















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